Complication Maintenance: What Each Extra Function Demands

More Complicated Means More Careful

Complications add functionality — but they also add maintenance requirements. Here is what each complication demands.

GMT

• Extra care: set the GMT hand independently when crossing time zones — never force the crown
• Service impact: minimal additional complexity over standard movements
• Our platform: NH34 — proven reliability, standard service procedures

Chronograph

• Extra care: avoid running the chronograph continuously — it adds wear to the mechanism
• Service impact: additional components need cleaning and lubrication during service
• Our platform: VK63 mecha-quartz — minimal service requirements, battery changes only

Day-Date

• Extra care: never set the day/date during the midnight danger zone (9 PM - 3 AM)
• Service impact: additional calendar mechanism adds service cost
• See: our crown positions guide

Chronograph + GMT Combined

• Extra care: both sets of rules apply — be methodical when setting
• Service impact: significant — two complication modules = two maintenance paths

Frequently Asked Questions

Which complication is most maintenance-friendly?
GMT — the simplest additional mechanism with the least service impact.

Do complications affect water resistance?
Pushers and additional crown positions create more potential entry points for water. Higher-quality construction mitigates this.

Should I avoid complications on my first watch?
Start simple — a three-hand automatic teaches you the basics. Add complications once you understand the fundamentals.